AIR BRAKES CDL PRACTICE TEST - HAWAII

6. Antifreeze:
helps the engine only when the temperature is below freezing.
helps the engine only under hot conditions.
helps the engine under hot conditions as well as cold conditions.
7. The trailer hand valve should:
never be used for parking.
be used in driving.
never be used to test the trailer brakes.
8. ABS:
helps you avoid skids caused by over braking.
helps you stop faster.
improves your visibility at night.
9. The parking brake:
should be used when you need to apply the brakes firmly.
should be used whenever you park.
should be used when driving in bad weather.
10. How can you tell if your vehicle is equipped with ABS?
Look for yellow ABS malfunction lamps on the instrument panel.
Trailers will have yellow ABS malfunction lamps on the left side.
All of the above.
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